A fight over a girl’s affections turned deadly yesterday near a Bensonhurst high school, with one suitor fatally stabbed and the other slashed and under arrest, police sources said.

The drama unfolded at 78th Street and 16th Avenue, just outside New Utrecht HS, at around 2:25 p.m.

When officers arrived they found two injured men – Ena Hyka, 21, and Gerald Chilelli, 18 – who had been feuding over a girl and wound up stabbing each other, sources said. A knife was recovered, police said.

Both men were taken to Lutheran Medical Center, where Hyka died.

Chilelli, who lives several blocks from the school on 72nd Street, was said to have initiated the violence and was arrested. Charges were pending.

In another incident of possible school-related violence, a youth was jumped by four to five males in a black Escalade outside Hillcrest HS at about 2:30 p.m.